* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...South-central Arizona, including the following areas, southern Gila County including the city of Globe, Maricopa County including the Phoenix metropolitan area, and northern Pinal County. * WHEN...From Thursday afternoon through late Thursday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Slow moving thunderstorms and those moving over the same areas feeding off a high moisture environment may result in rainfall rates in excess of 2-3"/hr. - http://www.weather.gov/safety/flood